Multi-tiered shelf



FIG. 1 is a front perspective view of a multi-tiered shelf showing my new design, wherein;

FIG. 2 is a top plan view;

FIG. 3 is a right side view, a view from the left side being a mirror image thereof;

FIG. 4 is a front elevational view; and,

FIG. 5 is a bottom plan view. 

The ornamental design for a multi-tiered shelf, as shown and described. 